Logo do repositório
 
Publicação

Effect of quality, porosity and density on the compression properties of cork

2008Artigo científico Acesso restrito
Ver registo simples
dc.contributor.authorAnjos, O.
dc.contributor.authorPereira, Helena
dc.contributor.authorRosa, Maria Emília
dc.date.accessioned2013-07-18T14:50:16Z
dc.date.available2013-07-18T14:50:16Z
dc.date.issued2008
dc.descriptionDOI 10.1007/s00107-008-0248-2por
dc.description.abstractThe compression properties of cork were studied on samples obtained from cork planks of two commercial quality classes (good and poor quality), with densities ranging from 0.12–0.20g cm−3 and porosities from0.5 to 22.0%. The stress-strain curves were characterized by an elastic region up to approximately 5% strain, followed by a large plateau up to 60% strain caused by the progressive buckling of cell walls, and a steep stress increase for higher strains corresponding to cell collapse. The direction of compression was a highly significant factor of variation, with cork showing higher strength for the radial compression. Density influenced compression and cork samples with higher density showed overall larger resistance to compression in the three directions. In the elastic region, an exponential model of Young’s modulus in function of cork density could be adjusted. The effect of porosity on compression was small and the stress-strain curves were similar regardless of the porosity of the samples, although there was a trend toward an overall increase of stress with porosity for higher strains. Porosity was characterised by a high variability in the anatomical features of the lenticular filling material and the presence of collapsed and thick walled lignified cells. The inclusion of a porosity parameter for the modelling of the elastic modulus did not improve the prediction obtained with densitybased models. There was no significant difference in the compression properties of cork samples obtained from cork planks of good and poor quality classes.por
dc.identifier.citationANJOS, O. ; PEREIRA, H. ; ROSA, M.E. (2008) - Effect of quality, porosity and density on the compression properties of cork. Holz Roh Werkst. 66. p. 295-301.por
dc.identifier.urihttp://hdl.handle.net/10400.11/2004
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSpringerpor
dc.subjectCorkpor
dc.subjectPorositypor
dc.subjectDensitypor
dc.titleEffect of quality, porosity and density on the compression properties of corkpor
dc.title.alternativeEinfluss von Qualit¨at, Porosit¨at und Dichte auf die Druckeigenschaften von Korkpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage301por
oaire.citation.startPage295por
oaire.citation.titleHolz Roh Werkstpor
oaire.citation.volume66por
person.familyNameAnjos
person.givenNameOfélia
person.identifier.ciencia-idC21D-D8C7-3037
person.identifier.orcid0000-0003-0267-3252
person.identifier.ridG-2808-2012
person.identifier.scopus-author-id23395659700
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationdf9191ae-0bbb-4bb8-bbdc-0f79c7365876
relation.isAuthorOfPublication.latestForDiscoverydf9191ae-0bbb-4bb8-bbdc-0f79c7365876

Ficheiros

Principais
A mostrar 1 - 1 de 1
Miniatura indisponível
Nome:
Effect of quality, porosity and density on the compression properties.pdf
Tamanho:
515.25 KB
Formato:
Adobe Portable Document Format
Ver/Abrir
Licença
A mostrar 1 - 1 de 1
Miniatura indisponível
Nome:
license.txt
Tamanho:
2.02 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Ver/Abrir

Coleções

ESACB - Artigos em revistas com arbitragem científica